gralloc0: Add BO_USE_HW_VIDEO_ENCODER mask in GRALLOC_USAGE_HW_VIDEO_ENCODER

gralloc0: Add BO_USE_HW_VIDEO_ENCODER mask in GRALLOC_USAGE_HW_VIDEO_ENCODER

BUG=b:144135251
TEST=ARC++ encoder on kukui
Change-Id: Ic15adebf2266b51aeaa19e863369e1c49c4fab03
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/minigbm/+/1904910
Reviewed-by: Gurchetan Singh <gurchetansingh@chromium.org>
Reviewed-by: Stéphane Marchesin <marcheu@chromium.org>
Tested-by: Hirokazu Honda <hiroh@chromium.org>
Auto-Submit: Hirokazu Honda <hiroh@chromium.org>
Commit-Queue: Hirokazu Honda <hiroh@chromium.org>